Detailed calculations and explanations, below
A common ordinary fraction is made up of
two integer numbers and a fraction bar:
1,107,692,306/3,599,999,984
- The integer number above the bar is called numerator: 1,107,692,306
- The integer number below the bar is called denominator: 3,599,999,984
- The fraction bar means that the numerator is divided by the denominator.
- To get the fraction's value divide the numerator by the denominator:
The value = 1,107,692,306 ÷ 3,599,999,984
To reduce a fraction to the lowest terms equivalent: divide the numerator and denominator by their greatest common factor, GCF
To calculate the greatest common factor, GCF:
- 1. Factor the numerator and the denominator (into prime factors), build their prime factorizations.
- 2. Multiply all their common prime factors, taken by the lowest exponents.
1. Factor the numerator and the denominator:
To factor a number (into prime factors) - or, in other words, to break it down to prime factors - or, in other words, to build its prime factorization: find the prime numbers that multiply together to get that number.
The prime factorizations:
1,107,692,306 = 2 × 7 × 79,120,879
1,107,692,306 is a composite number.
Written with exponents:
3,599,999,984 = 2 × 2 × 2 × 2 × 7 × 53 × 283 × 2,143 = 24 × 7 × 53 × 283 × 2,143
3,599,999,984 is a composite number.
1,107,692,306/3,599,999,984 =
(1,107,692,306 ÷ 14) / (3,599,999,984 ÷ 14) =
79,120,879/257,142,856
Yet another method to reduce the fraction
To reduce a fraction without calculating the GCF: factor its numerator and denominator, then all the common prime factors are easily identified and crossed out.
1,107,692,306/3,599,999,984 =
(2 × 7 × 79,120,879)/(24 × 7 × 53 × 283 × 2,143) =
((2 × 7 × 79,120,879) ÷ (2 × 7)) / ((24 × 7 × 53 × 283 × 2,143) ÷ (2 × 7)) =
79,120,879/(23 × 53 × 283 × 2,143) =
79,120,879/257,142,856
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
79,120,879/257,142,856 =
79,120,879 ÷ 257,142,856 =
0.30769230859 ≈
0.31